I was able to successfully rehydrate my weed with a minimum of effort.
Prior to rehydration, they were running as low a 33%. Very dry, and crumbly. I took a half sheet of paper towel, and folded it into a 2"x2" square. Placing it onto of the cannabis in the jar.
Then I took a second small piece of paper towel and folded it into a 1"x1" square, and soaked it, and squeezed as much water as I could. I then placed it directly on top of the dry paper towel, so nothing wet touched the weed. Resealed the jar, and in 12 hours perfectly hydrated.